نتایج جستجو برای: dokhtar

تعداد نتایج: 144  

Journal: :زمین شناسی اقتصادی 0
محمد معانی جو رحیمه سالمی

introduction there is an iron mining complex called shahrak 60 km east of takab town, nw iran. the exploration in the shahrak deposit (general name for all iron deposits of the area) started in 1992 by foolad saba noor co. and continued in several periods until 2008. the shahrak deposit comprising 10 ore deposits including korkora-1, korkora-2, shahrak-1, shahrak-2, shahrak-3, cheshmeh, golezar...

Journal: :زمین شناسی اقتصادی 0

introduction mineral composition is sensitive to variations in the composition of the magma and can be used to characterize the physical conditions of crystallization such as temperature, pressure, oxygen fugacity and water content. the studies have demonstrated that geobarometery by amphibole provides a tool for determining the depth of crystallization and knowledge of the depth of crystalliza...

Journal: :محیط شناسی 0
سارا شیخ فخرالدینی کارشناس ارشد زمین شناسی زیست محیطی، گروه زمین شناسی، دانشکدۀ علوم، دانشگاه شهید باهنر کرمان احمد عباس نژاد دانشیار بخش زمین شناسی دانشگاه شهید باهنر کرمان

introduction thermodynamically, the surface waters in mountain environments are unstable and their chemical composition is a reflection of water-rock interactions. few studies have also been undertaken on the geochemistry of the surface waters in mountain environments. hence, this paper deals with the source of elements as well as the chemistry of the stream which drains from the caldera of bid...

2006
Randolph Langenbach

The Arg-e Bam is a remarkable example of earthen architecture and construction that was heavily damaged in the Bam, Iran earthquake of 26 December 2003. This paper presents the hypothesis that the collapse of the walls was caused largely by a combination of the effects of (1) the additive changes made to the walls, particularly in recent restorations resulting in variations in the density and r...

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